The COMP Cams Retro-Fit Hydraulic Roller Lifters are premium aftermarket engine performance parts specifically designed to replace factory roller blocks or serve as a retro-fit solution for non-factory roller blocks. Designed for engines that run at high-rpm, these Retro-Fit Hydraulic Roller Lifters decrease friction and increase longevity when compared to flat tappet lifters. They are also built to accept more aggressive cam profiles than the flat tappet lifters will allow. COMP Cams, a world-renowned industry leader in producing top-of-the-line engine performance parts such as camshafts and valve trains, employed the same proprietary technology when developing their state-of-the-art Retro-Fit Hydraulic Roller Lifters. Made from high quality materials, the COMP Cams Retro-Fit Hydraulic Roller Lifters have undergone the company's renowned comprehensive design and testing process to certify a reliable and long lasting quality.

Competitions Cams, Inc., commonly known as COMP Cams, is a world-leading aftermarket automotive parts manufacturer. COMP Cams was founded in 1976 and then incorporated in 1977. COMP Cams' headquarters is established in Memphis Tennessee and they also have five manufacturing locations spread across the United States. COMP Cams began building a name for itself by selling valve train products via satellite distribution stores. Over the years, COMP Cams has acquired several companies that manufacture transmissions, electronic fuel injection, and nitrous oxide. As of today, COMP Cams comprises a total of 13 companies with hundreds of employees. The company is a major mover in the automobile industry, developing superior and state-of-the-art techniques and methodologies that have become a standard in various competitions such as NASCAR. The technological advancement and innovations enable COMP Cams to manufacture premium aftermarket performance parts that are compatible with leading high-performance vehicles. COMP Cams' products are also the go-to brand of hot-rod enthusiasts, engine builders, and professional racers.